<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>CSS3外观漂亮淡入淡出Tab菜单演示</title>
    <style>
        body {
            font-family: Cambria, Arial;
            background: #333;
        }

        .tabs {
            width: 100%;
            max-width: 600px;
            border: 1px solid black;
            margin: 50px auto;
        }

        input {
            opacity: 1;
        }

        label {
            cursor: pointer;
            background: yellow;
            color: red;
            border-radius: 5px 5px 0 0;
            padding: 1.5% 3%;
            float: left;
            margin-right: 2px;
            font: italic 1em cambria;
        }

        label:hover {
            background: blue;
        }

        input:checked + label {
            background: palegreen;
            color: blueviolet;
        }

        .tabs input:nth-of-type(1):checked ~ .panels .panel:first-child,
        .tabs input:nth-of-type(2):checked ~ .panels .panel:nth-child(2),
        .tabs input:nth-of-type(3):checked ~ .panels .panel:nth-child(3),
        .tabs input:nth-of-type(4):checked ~ .panels .panel:last-child {
            opacity: 1;
            -webkit-transition: .9s;
        }

        .panels {
            float: left;
            clear: both;
            position: relative;
            width: 100%;
            background: #fff;
            border-radius: 0 10px 10px 10px;
            min-height: 315px;
        }

        .panel {
            width: 100%;
            opacity: 0;
            position: absolute;
            background: #fff;
            border-radius: 0 10px 10px 10px;
            padding: 4%;
            box-sizing: border-box;
        }

        .panel h2 {
            margin: 0;
            font-family: Arial;
        }
    </style>
</head>

<body>
<article class="tabs">
    <input checked id="one" name="tabs" type="radio">
    <label for="one">Tab One</label>
    <input id="two" name="tabs" type="radio" value="Two">
    <label for="two">Tab Two</label>
    <input id="three" name="tabs" type="radio">
    <label for="three">Tab Three</label>
    <input id="four" name="tabs" type="radio">
    <label for="four">Tab Four</label>

    <div class="panels">
        <div class="panel">
            <h2>This is Panel One</h2>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris
                vel leo sem. Sed nec quam sit amet lorem volutpat ullamcorper ut
                sed massa. Sed vel felis velit. Nullam et turpis sed dui auctor
                vehicula quis a dui.</p>
            <p>Aliquam vitae leo et sapien volutpat accumsan quis eget turpis.
                Etiam ac metus vitae purus semper pretium. Curabitur id nisl
                nisl. Cras ut massa sed dolor ullamcorper consequat ut sed
                dolor.</p>
            <p>Nam sodales, mi eu convallis adipiscing, ligula justo consectetur
                tellus, tincidunt vestibulum tortor elit a augue. Ut elementum
                ultricies orci, vel luctus neque varius in. Phasellus turpis
                nunc, eleifend ac fringilla at, malesuada in eros.</p>
        </div>
        <div class="panel">
            <h2>This is Panel Two</h2>
            <p>Aliquam vitae leo et sapien volutpat accumsan quis eget turpis.
                Etiam ac metus vitae purus semper pretium. Curabitur id nisl
                nisl. Cras ut massa sed dolor ullamcorper consequat ut sed
                dolor.</p>

            <p>Nam sodales, mi eu convallis adipiscing, ligula justo consectetur
                tellus, tincidunt vestibulum tortor elit a augue. Ut elementum
                ultricies orci, vel luctus neque varius in. Phasellus turpis
                nunc, eleifend ac fringilla at, malesuada in eros.</p>
        </div>
        <div class="panel">
            <h2>This is Panel Three</h2>
            <p>Nam sodales, mi eu convallis adipiscing, ligula justo consectetur
                tellus, tincidunt vestibulum tortor elit a augue. Ut elementum
                ultricies orci, vel luctus neque varius in. Phasellus turpis
                nunc, eleifend ac fringilla at, malesuada in eros.</p>

            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris
                vel leo sem. Sed nec quam sit amet lorem volutpat ullamcorper ut
                sed massa. Sed vel felis velit. Nullam et turpis sed dui auctor
                vehicula quis a dui.</p>
            <p>Aliquam vitae leo et sapien volutpat accumsan quis eget turpis.
                Etiam ac metus vitae purus semper pretium. Curabitur id nisl
                nisl. Cras ut massa sed dolor ullamcorper consequat ut sed
                dolor.</p>
        </div>
        <div class="panel">
            <h2>This is Panel Four</h2>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris
                vel leo sem. Sed nec quam sit amet lorem volutpat ullamcorper ut
                sed massa. Sed vel felis velit. Nullam et turpis sed dui auctor
                vehicula quis a dui.</p>

            <p>Aliquam vitae leo et sapien volutpat accumsan quis eget turpis.
                Etiam ac metus vitae purus semper pretium. Curabitur id nisl
                nisl. Cras ut massa sed dolor ullamcorper consequat ut sed
                dolor.</p>
        </div>
    </div>
</article>
</body>
</html>
